Analysis of essentially non-linear vibration of large-scale models for bladed discs with variable contact and friction at root joints

Petrov, E P and Ewins, D J (2004) Analysis of essentially non-linear vibration of large-scale models for bladed discs with variable contact and friction at root joints. In: 8th International Conference on Vibrations in Rotating Machinery, Sep 07-09, 2004, Swansea, WALES.

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Abstract

An effective method has been developed for analysis of the multiharmonic forced response of large-scale finite element models of bladed discs with contact interfaces at blade roots. Area contact elements are developed to model nonlinear forces acting at the contact surfaces. The elements allow for unilateral normal and tangential friction contact forces. The friction model includes effects of the variable normal load and variation of the contact area. Numerical investigations of the forced response for realistic finite element models of bladed discs with root damping are performed for the first time

Item Type: Conference or Workshop Item (Paper)
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology > TJ Mechanical engineering and machinery
Depositing User: Yevgen Petrov
Date Deposited: 27 Nov 2012 07:21
Last Modified: 27 Nov 2012 07:21
URI: http://sro.sussex.ac.uk/id/eprint/42995
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